主页
学科
搜索
账户
常见问题
当前学科:妇产科主治医师
题目:
题干
产科处理原则正确的是()
以下对妊娠期抗凝治疗描述正确的是()
妊娠期处理不正确的是()
患者产后抗凝药物治疗,不正确的是()
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
CDUC能够连接2个TRU,可将2个TRU的射频信号耦合到一根天线上发射,但对射频信号有()dB的衰耗。
患者,咳逆喘满不得卧,气短气急,咳痰白稀,呈泡沫状,胸部膨满,口干不欲饮,周身酸楚,恶寒,面色青暗,舌体暗淡,苔白滑,脉浮紧,用()。
创新精神包括发现机遇和调动资源去开发这些机遇。()
PARIS—An energy watchdog is alarmed about the threat to the environment from the soaring electricity needs of gadgets like MP3 players, mobile phones and flat screen TVs. In a report today, the Paris-based International Energy Agency estimates new electronic gadgets will triple their energy consumption by 2030 to 1 700 terawatt(太瓦)hours, the equivalent of todays home electricity consumption of the United States and Japan combined. The world would have to build around 200 new nuclear power plants just to power all the TVs, IPods, PCs and other home electronics expected to be plugged in by 2030, when the global electric bill to power them will rise to $ 200 billion a year, the IEA said. Consumer electronics is "the fastest growing area and its the area with the least amount of policies in place" to control energy efficiency, said Paul Waide, a senior policy analyst at the IEA. Electronic gadgets already account for about 15 percent of household electric consumption, a share that is rising rapidly as the number of these gadgets multiplies. Last year, the world spent $80 billion on electricity to power all these household electronics, the IEA said. Most of the increase in consumer electronics will be in developing countries, where economic growth is fastest and ownership rates of gadgets is the lowest, Waide said. "This will jeopardize efforts to increase energy security and reduce the emission of greenhouse gases," blamed for global warming, the agency said. Existing technologies could cut down gadgets energy consumption by more than 30 percent at no cost or by more than 50 percent at a small cost, the IEA estimates, meaning total greenhouse gas emissions from households electronic gadgets could be held stable at around 500 million tons of CO2 per year.The energy consumption of new electronic gadgets at present______.A.is nearly 1 700 terawatt hoursB.is nearly 600 terawatt hoursC.equals to the home electricity consumption of the United StatesD.is greater than the home electricity consumption of Japan
一个国家的基本是非应当由()来判断。
试述心室肌细胞动作电位的分期及其形成机理。
石膏掺量过少,会导致()
单跨超静定梁在荷载单独作用下引起的杆端弯矩称为()。
直流燃烧器常见缺陷有哪些?
在误码率相同的条件下,三种数字调制方式之间抗干扰性能好坏的关系为()。